Matching performance among visible and near infrared coating, low infrared emitting coating and microwave absorbing coating

Abstract

The matching performance among the visible and near infrared coating, the low infrared emitting coating and the microwave absorbing coating was investigated. Experimental results show that the resulting material is characteristic of wideband effect ranging from the visible, near infrared and 3–5 μm, 8–14 μm infrared portion of the spectrum, as well as the radar region from 8 to 18 GHz when these three materials form a layer-structure material system. The microwave absorbing ability of material is hardly changed. The resonance peak moves towards lower frequency as the thickness of the visible, near infrared coating and the low infrared emitting coating increases. This problem can be resolved by controlling the thickness of the material. On the other hand, the infrared emissivity ɛ of the material system increases as the thickness of the visible, near infrared coating increases. This can be resolved by increasing infrared transparency of the visible and near infrared topcoating or controlling its thickness. The experimental resulting material system has spectral reflection characteristics in visible and near infrared regions that are similar to those of the natural background.

Keywords

visible / near infrared / infrared / microwave / camouflage coating

References

[1] LEDER P G. An Introduction to Radar Materials. AD-A169 895, 1992

[2] Annie Bastiere. A Decision-making Aid for Multi-layer Radar Absobent Covering. ESA-TT-1173, 1990

[3] Li Xinhua, Xiaoxiong Ment Leichen, . Development Status Quo of Camouflage Coatings and Their Future Prospects. Infrared Technology, 1994, 16(1): 5-11.

[4] Wan Meixiang, Li Shuzhen, Li Junchao, . Stealthy Materials Having Microwave Absorptivity and Low Emissivity. Aerospace Materials & Technology, 1991, 6: 26-29.

[5] Xie Guohua, Zhang Zuoguang, Wu Ruibin. Study on Parameter Matching Performance between Low Thermal Infrared Emitting Coating and Microwave Absorbing Materials. Journal of Aeronautical Materials, 2003, 23(3): 46-49.

[6] Wang Xiangyuan, Lu Huaixian, Hu Guoyou, . The Computer Aided Design of Double-layered Structures for Microwave Absorption. Journal of Nanjing University (Natural Sciences Edition), 1998, 35(2): 261-266.

[7] Qiaoyu Leiliu, Zhang Mingxie, Hu Liancheng. Status and Development of Microwave Absorbing Materials. Aerospace Materials & Technology, 1994, 24(1): 1-5.